Piper Lance II - Page 211

LANCE
II SERVICE
MANUAL
TABLE
VI-III. HYDRAULIC
SYSTEM
TROUBLESHOOTING
(cont.)
Trouble
Cause
Remedy
Pump fails to shut off
though gear has fully
retracted.
Pressure switch inop-
erative.
Replace switch.
Pressure switch out of
adjustment.
Pump retraction sole-
noid sticking (in-
board solenoid).
Internal leakage of
system.
Replace
switch.
Replace solenoid.
Check back-up exten-
sion
unit valve
for
internal leakage.
Check gear actuating
cylinders for internal
leakage.
Check
for internal
dam-
age to hydraulic pump.
External
leakage
of
system.
Check back-up exten-
sion unit valve for
external leakage.
Check gear actuating
cylinders for external
leakage.
Issued: 1/3/78
1119
HYDRAULIC
SYSTEM